CA2056216A1 - Packet data flow control for an isdn d-channel - Google Patents

Packet data flow control for an isdn d-channel

Info

Publication number
CA2056216A1
CA2056216A1 CA2056216A CA2056216A CA2056216A1 CA 2056216 A1 CA2056216 A1 CA 2056216A1 CA 2056216 A CA2056216 A CA 2056216A CA 2056216 A CA2056216 A CA 2056216A CA 2056216 A1 CA2056216 A1 CA 2056216A1
Authority
CA
Canada
Prior art keywords
terminal
transmitted
rnr
message
allocated bandwidth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2056216A
Other languages
French (fr)
Other versions
CA2056216C (en
Inventor
Matthew Chi Ho Chu
Chi-Vien Ly
Gordon William Coulson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2056216A1 publication Critical patent/CA2056216A1/en
Application granted granted Critical
Publication of CA2056216C publication Critical patent/CA2056216C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0471—Terminal access circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/107—Control equipment for part of the connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/296—Packet switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/392—Channel allocation - special rules

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A plurality of terminals, each responsive to RR (receive ready) and RNR (receivenot ready) messages for respectively enabling and inhibiting the transmission of data packets by the terminal, are coupled to a packet handler via a multiplexed path. In order to limit each terminal to an allocated bandwidth, for each terminal a number is stored representing a number of data bytes which the respective terminal is permitted to transmit within a timed period at its allocated bandwidth, and in each timed period a counter counts down from this number in accordance with the number of data bytes transmitted by the terminal. An RNR message is transmitted to the terminal if and when a zero count is reached, and following such an RNR message an RR message is transmitted to the terminal to enable it for the next time period. The arrangement provides a relatively instantaneous limiting of the bandwidth of each terminal to its allocated bandwidth, and can be applied independently for each direction of transmission.
CA002056216A 1990-12-03 1991-11-26 Packet data flow control for an isdn d-channel Expired - Fee Related CA2056216C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/620,987 US5187707A (en) 1990-12-03 1990-12-03 Packet data flow control for an isdn D-channel
US07/620,987 1990-12-03

Publications (2)

Publication Number Publication Date
CA2056216A1 true CA2056216A1 (en) 1992-06-04
CA2056216C CA2056216C (en) 1998-02-17

Family

ID=24488255

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002056216A Expired - Fee Related CA2056216C (en) 1990-12-03 1991-11-26 Packet data flow control for an isdn d-channel

Country Status (3)

Country Link
US (1) US5187707A (en)
JP (1) JP3287866B2 (en)
CA (1) CA2056216C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0514546A (en) * 1991-07-05 1993-01-22 Fujitsu Ltd Bandwidth management method in communication
DE59206578D1 (en) * 1991-08-22 1996-07-18 Siemens Ag CELL MULTIPLEXING METHOD FOR SEVERAL RECEIVERS CONNECTED TO A TRANSMISSION LINE
JP2883483B2 (en) * 1991-12-16 1999-04-19 シャープ株式会社 Data flow type information processing device
US6157967A (en) * 1992-12-17 2000-12-05 Tandem Computer Incorporated Method of data communication flow control in a data processing system using busy/ready commands
US5717857A (en) * 1993-03-19 1998-02-10 Ncr Corporation System for switching data connection to use first channel and second channel without substantial interruption of transfer of audio signals and image data between computers
ZA946674B (en) * 1993-09-08 1995-05-02 Qualcomm Inc Method and apparatus for determining the transmission data rate in a multi-user communication system
US5553135A (en) * 1994-03-31 1996-09-03 Xing; Xie-Hao Point-to-multipoint communication system and method
US5587997A (en) * 1995-02-24 1996-12-24 Hewlett-Packard Company Method and apparatus for determining when all packets of a message have arrived
JPH09319672A (en) * 1996-05-30 1997-12-12 Fuji Xerox Co Ltd Data transmission device and method
JP3879754B2 (en) * 2004-08-31 2007-02-14 ヤマハ株式会社 Bandwidth control device and program
US20060078126A1 (en) * 2004-10-08 2006-04-13 Philip Cacayorin Floating vector scrambling methods and apparatus
JP4486483B2 (en) * 2004-11-26 2010-06-23 古野電気株式会社 TDMA communication device
US8077625B1 (en) * 2005-06-30 2011-12-13 National Semiconductor Corporation Apparatus and method for using a communication resource for performing a timing operation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475192A (en) * 1982-02-16 1984-10-02 At&T Bell Laboratories Data packet flow control scheme for switching networks
US4677616A (en) * 1985-09-11 1987-06-30 At&T Company Flow control scheme for a switching network
US4727537A (en) * 1985-12-24 1988-02-23 American Telephone And Telegraph Company Flow control arrangement for the transmission of data packets to a communication network
US4769810A (en) * 1986-12-31 1988-09-06 American Telephone And Telegraph Company, At&T Bell Laboratories Packet switching system arranged for congestion control through bandwidth management
US4769811A (en) * 1986-12-31 1988-09-06 American Telephone And Telegraph Company, At&T Bell Laboratories Packet switching system arranged for congestion control
FR2616025B1 (en) * 1987-05-26 1989-07-21 Lespagnol Albert METHOD AND SYSTEM FOR PACKET FLOW CONTROL
US4839891A (en) * 1987-07-24 1989-06-13 Nec Corporation Method for controlling data flow

Also Published As

Publication number Publication date
CA2056216C (en) 1998-02-17
JP3287866B2 (en) 2002-06-04
US5187707A (en) 1993-02-16
JPH0522344A (en) 1993-01-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed